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EP 4 232 451 A1

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(43) Date of publication: 30.08.2023 Bulletin 2023/35 (21) Application number: 21882228.6 (22) Date of filing: 22.10.2021

(51) International Patent Classification (IPC):  C07D 487/04(2006.01) A61K 31/5377(2006.01) A61P 29/00(2006.01) A61K 31/519(2006.01) A61P 27/02(2006.01) (52) Cooperative Patent Classification (CPC): C07D 487/04; A61P 29/00; A61P 27/02; A61P 17/00; A61P 17/06; A61P 11/00; C07D 519/00 (86) International application number: PCT/IB2021/000710 (87) International publication number: WO 2022/084741 (28.04.2022 Gazette 2022/17)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 23.10.2020 US 202063104979 P (71) Applicant: Ildong Pharmaceutical Co., Ltd. Seoul 06752 (KR)

(72) Inventors: LEE, Myongjae Hwaseong-si Gyeonggi-do 18449 (KR) OH, Changmok Hwaseong-si Gyeonggi-do 18449 (KR) LIM, Dami Hwaseong-si Gyeonggi-do 18449 (KR) KIM, Kyeong-a Hwaseong-si Gyeonggi-do 18449 (KR) LEE, Seolhee Hwaseong-si Gyeonggi-do 18449 (KR) JEONG, Ilji Hwaseong-si Gyeonggi-do 18449 (KR) RYU, Jaeeun Hwaseong-si Gyeonggi-do 18449 (KR) LEE, Jooyun Hwaseong-si Gyeonggi-do 18449 (KR) JUN, Yearin Hwaseong-si Gyeonggi-do 18449 (KR) KWON, Jinsun Hwaseong-si Gyeonggi-do 18449 (KR) SOHN, Te-ik Hwaseong-si Gyeonggi-do 18449 (KR) KIM, Gunhee Hwaseong-si Gyeonggi-do 18449 (KR) KIM, Jungho Hwaseong-si Gyeonggi-do 18449 (KR) YOON, Jongmin Hwaseong-si Gyeonggi-do 18449 (KR) LEE, Jin Hee Hwaseong-si Gyeonggi-do 18449 (KR) YOON, Hongchul Hwaseong-si Gyeonggi-do 18449 (KR) LEE, Jung Woo Hwaseong-si Gyeonggi-do 18449 (KR) PARK, Joontae Hwaseong-si Gyeonggi-do 18449 (KR) AN, Kyung Mi Hwaseong-si Gyeonggi-do 18449 (KR) (74) Representative: Engelhard, Markus  Boehmert & Boehmert Anwaltspartnerschaft mbB Pettenkoferstrasse 22 80336 München 80336 München (DE)